Sonata for Flute & Piano, H. 306: I. Allegro moderato

Recording by Bohuslav Martinů.

Recording identifiers

ISRC
GBLWD9009614
Release date of the album this recording appears on
1990-09-01
CopyrightID (CopyrightChains transaction hash)
0xda52edc31e252a026247c61b6bae2d7e2bc6a0ad45f937d6a792f4255c5be6c7
Copyright registration time
2026-07-30T01:21:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T01:32:48Z
Bitcoin block
960185
Canonical record hash
sha256:242104f06ce6fb5a748c22689fb8a22cbbcf1e506755517814f412296c5f30b2

What this proof establishes

This recording was released in 1990, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.